Chintada Umasankar, Kali Prasad, Yeon Taek Choi, Do Won Lee, Hyoung Seop Kim, S. Sankaran, Uday Chakkingal
{"title":"Role of Direct Quenching and Partitioning Processes in Improving Austenite Stability and Stretch Flangeability in a Low C Steel","authors":"Chintada Umasankar, Kali Prasad, Yeon Taek Choi, Do Won Lee, Hyoung Seop Kim, S. Sankaran, Uday Chakkingal","doi":"10.1007/s12540-024-01756-z","DOIUrl":"10.1007/s12540-024-01756-z","url":null,"abstract":"<div><p>The current research work introduces a novel processing technique involving a combination of hot rolling and a direct quench and partitioning treatments to produce an ultra-high strength, low-carbon and lean-composition steel with superior mechanical properties and enhanced stretch flangeability. The methodology involves the introduction of a secondary partitioning step after a one-step direct quenching and partitioning (DQP) process. A detailed investigations on microstructures, tensile properties and stretch flangeability (using hole expansion testing) were carried out. The martensite-austenite two phase microstructure resulted in a remarkably improved product of strength and elongation (PSE, 24 GPa.%), the hole expansion ratio of 45% and a total elongation of 21.7%. It is shown that the stability of retained austenite, rather than its volume fraction, has a significant impact on the strain hardening rate, and therefore influences strength, ductility and stretch flangeability. The results indicate that tailoring retained austenite stability is essential for optimizing the mechanical performance and stretch flangeability of quenched and partitioned steels. Introducing secondary partitioning into the Q&P process provides a feasibility to achieve a large fraction of total retained austenite, (predominantly film-type, along with small-sized blocky retained austenite islands in the microstructure), which results in high-strength Q&P steels with excellent global and local formability.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 1","pages":"84 - 99"},"PeriodicalIF":3.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hee Soo Yun, Jaeyeong Park, Sang Koo Jeon, Van Hung Dao, Young-Kook Lee, Seung Hoon Nahm
{"title":"Effects of Dwell Time on Thermo-Mechanical Fatigue Behavior in a Single-Crystal Ni-Based Superalloy","authors":"Hee Soo Yun, Jaeyeong Park, Sang Koo Jeon, Van Hung Dao, Young-Kook Lee, Seung Hoon Nahm","doi":"10.1007/s12540-024-01761-2","DOIUrl":"https://doi.org/10.1007/s12540-024-01761-2","url":null,"abstract":"<p>The microstructural effect on the dwell time of the TMF test, which can describe a part of the gas turbine, was studied. In out-of-phase (OP) with dwell time on a single-crystal Ni-based superalloy, the TMF life was reduced by 61.5% compared to without dwell times. Due to the introduction of dwell time, the deformation behavior transitioned from hardening to softening. During exposure at maximum temperature, stress relaxation was occurred, which meant releasing the dislocation tangle. However, the dwell time led to the topologically close-packed (TCP) phase formation and growth. In conditions with the dwell time, TCP phase particles were increased by 241% and coarsened. Also, mechanical twins, which had resistance to crack propagation, were reduced. Therefore, the introduction of dwell time led to the promotion of cracks and the loss of resistance to crack propagation.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"51 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141938822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shuaishuai Lv, Zhengjie Hou, Bin Li, Hongjun Ni, Weidong Shi, Chuanzhen Tao, Lin Zhou, Hai Gu, Linfei Chen
{"title":"Accurate Location Detection Method for Aluminum Profile Surface Defects Based on Improved YOLOX-S Algorithm","authors":"Shuaishuai Lv, Zhengjie Hou, Bin Li, Hongjun Ni, Weidong Shi, Chuanzhen Tao, Lin Zhou, Hai Gu, Linfei Chen","doi":"10.1007/s12540-024-01764-z","DOIUrl":"https://doi.org/10.1007/s12540-024-01764-z","url":null,"abstract":"<p>Aluminum profiles in the production process will inevitably appear a variety of surface defects, seriously affect the quality of products. The traditional method to detect the surface defects can not meet the actual demand, so it is of great significance to study the efficient detection method. In this paper, digital image processing methods such as rotation, flip, contrast and brightness transformation are used to increase the number of samples and simulate the complex imaging environment. An improved YOLOX-S detection model is proposed. Squeeze-and-Excitation Networks is embedded in the Cross Stage Partial module, and then SECSP module is proposed, and all CSP modules in YOLO-S are replaced with SECSP module, which improves the sensitivity of the network to the feature channel. SCYLLA-IoU loss function is used instead of IoU loss function. The improved model can improve the detection ability of small targets and the ability to resist background interference information. The mAP reaches 91.62, which is 1.82% higher than that of the basic YOLOX-S, and the detection speed reaches 58.67 frames ·s<sup>−1</sup>, which can meet the real-time detection requirements. At the same time, the comparison experiment proves that the comprehensive performance of the proposed detection model is the best, and the detection accuracy and speed have reached a good balance. The ablation experiment proves that the two improved schemes can improve the detection accuracy of the network.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"1 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141938821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. T. P. Rajendra Kumar, K. Jayabal, M. Kamaraj, Srinivasa Rao Bakshi
{"title":"Hot Tensile Deformation Behaviour of AA2524-T3 Alloy and Prediction of Johnson–Cook Model Parameters","authors":"R. T. P. Rajendra Kumar, K. Jayabal, M. Kamaraj, Srinivasa Rao Bakshi","doi":"10.1007/s12540-024-01749-y","DOIUrl":"https://doi.org/10.1007/s12540-024-01749-y","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The presented work explores the quasi-static response of AA2524-T3 alloy studied under hot tensile loading. The impact on the flow stress of this alloy due to different strain rates in the range of 0.001 <span>(hbox {s}^{-1})</span> to 0.1 <span>(hbox {s}^{-1})</span> and temperatures between 25 and 300 °C are investigated experimentally. The initial microstructural features and subsequent microstructural changes after taking the alloy to various test temperatures, but prior to tensile testing, are characterized through extensive microscopical analysis. The formation of fine cell structures and the occurrence of more intense recovery mechanism are observed at 250 °C. Above this temperature, it is observed the presence of more amount of <span>(hbox {S}^{prime })</span> precipitates. After performing hot tensile loading on AA2524-T3 under a various combination of test temperatures and strain rates, the fracture morphology of tested samples are examined. Notably, the ductility of AA2524-T3 alloy decreases marginally with an increase in strain rate up to 200 °C and beyond this temperature, it increases considerably for increase in strain rates. In addition to the experimental study, the parameters of Johnson–Cook constitutive model are determined to predict the flow stress behavior of AA2524-T3 for selected testing conditions. Finally, the strain rate sensitivity and thermal softening coefficient, the key parameters in Johnson–Cook model, are optimized for the chosen test ranges.</p><h3 data-test=\"abstract-sub-heading\">Graphic Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"6 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141938823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yu Wang, Xinghua Ji, Qingjun Peng, Xuexiang Zhou, Xusheng Chang, Gang Chen, Qiang Chen
{"title":"Anomalous Dissolution Mechanism During Electropulsing-Assisted Solution Treatment Enhancing the Strength-Ductility Compatibility in Aermet 100 Steel","authors":"Yu Wang, Xinghua Ji, Qingjun Peng, Xuexiang Zhou, Xusheng Chang, Gang Chen, Qiang Chen","doi":"10.1007/s12540-024-01746-1","DOIUrl":"https://doi.org/10.1007/s12540-024-01746-1","url":null,"abstract":"<p>A novel strategy aimed at controlling the abnormal dissolution mechanism of carbides during electropulsing is introduced, presenting a solution to the longstanding challenge of simultaneously enhancing steel strength and plasticity. Utilizing the electropulsing assisted solution (EAS) treatment, we prepared ultra-high strength steel with increased strength and plasticity at lower temperatures and in drastically reduced timeframes. The multiple strengthening mechanisms and the plasticizing mechanisms associated with multiscale microstructures are systematically discussed. Comparisons indicate that the strength and plasticity of steels treated with EAS surpass those of steels subjected to optimize conventional furnace solution treatment. Specifically, the experimental steel subjected to electropulsing assisted solution at 850 °C for 45 min showcased a maximum tensile strength of 1924.5 MPa. This impressive feat is credited to a high dislocation strengthening of 582.3 MPa and a grain refinement strengthening of 159.7 MPa. Additionally, a peak elongation-to-failure of approximately 14.2% was observed in EAS at 885 °C for 30 min. This improvement can be attributed to the activation of the slip system, coupled with an increase in the high-angle grain boundaries fraction numbers. These changes, in turn, amplify the coordinated deformation capacity, minimizing crack propagation.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"66 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141938824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Additional Alloying Elements on Microstructure and Properties of AlCoCrFeNi High Entropy Alloy System: A Comprehensive Review","authors":"S. Arun, N. Radhika, Bassiouny Saleh","doi":"10.1007/s12540-024-01752-3","DOIUrl":"https://doi.org/10.1007/s12540-024-01752-3","url":null,"abstract":"<p>High entropy alloys (HEAs), known for their multi-principal element composition, have attracted considerable interest in light of their unique mechanical and thermal properties. Among them, the AlCoCrFeNi HEA system has shown promising characteristics, but the influence of additional alloying elements on its performance remains a crucial area of study. This comprehensive review investigates the effects of incorporating supplementary elements into the core AlCoCrFeNi system on its microstructure and various properties. Furthermore, it explores how these alterations in microstructure impact the mechanical properties, corrosion and wear behavior of the HEA, emphasizing the potential to customize these properties through strategic alloying additions. Additionally, the review examines how varying the amounts of constituent elements in the AlCoCrFeNi system, without adding additional elements, influences the microstructure and phases formed, with the help of phase diagrams. This review offers valuable insights to researchers and engineers aiming to optimize AlCoCrFeNi HEAs for specific applications.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"7 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141938869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of Welding Processes on the Microstructure and Mechanical Properties of Duplex Stainless Steel Parts Fabricated by Wire Arc Additive Manufacturing","authors":"Prasanna Nagasai Bellamkonda, Maheshwar Dwivedy, Malarvizhi Sudersanan, Balasubramanian Visvalingam","doi":"10.1007/s12540-024-01753-2","DOIUrl":"https://doi.org/10.1007/s12540-024-01753-2","url":null,"abstract":"<p>Direct energy deposition (DED) is an advanced additive manufacturing (AM) technique for producing large metal components in structural engineering. Its cost-effectiveness and high deposition rates make it suitable for creating substantial and complex parts. However, the mechanical and microstructural properties of these components can be influenced by the varying heat input and repeated thermal treatments associated with different welding procedures used during the deposition process. This study employed gas metal arc welding (GMAW) and cold metal transfer (CMT) arc welding techniques to fabricate cylindrical components from 2209 duplex stainless steel (DSS). The research investigated the impact of these welding methods on the microstructure and mechanical properties of the 2209 DSS cylinders. The intricate thermal cycles and cooling rates inherent in the DED process significantly influenced the primary phase balance, ideally comprising 50% austenite and 50% ferrite. In components processed using GMW, σ-phase formation was noted at the grain boundaries. Additionally, a slower cooling rate and extended time for solid-state phase transformations led to an increase in austenite content from the bottom to the top of the component. The cylinder fabricated using the CMT process exhibited fine austenite morphologies and a higher ferrite content compared to the GMW-processed cylinder. Furthermore, the cylinder produced using the CMT process showed consistent properties across the building direction, unlike the components manufactured with the GMW process. In terms of tensile properties, hardness, and impact toughness, the cylinder produced using the CMT technique outperformed the one made with the GMW process.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"50 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141938825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Linear Friction Welding of Similar and Dissimilar Materials: A Review","authors":"Namrata Gangil, Aakash Mishra, Nadeem Fayaz Lone, Dhruv Bajaj, Daolun Chen, Julfikar Haider, Xizhang Chen, Sergey Konovalov, Arshad Noor Siddiquee","doi":"10.1007/s12540-024-01738-1","DOIUrl":"10.1007/s12540-024-01738-1","url":null,"abstract":"<div><p>Linear friction welding (LFW) has distinction of being a unique process which can join components in a variety of materials, shape and size configurations in an extremely low cycle time. The conventional arc welding, friction stir welding and rotary friction welding are also very popular and a lot of work has been reported on materials joined by these processes. The ability to join huge and small size parts, in a variety of similar and dissimilar materials, shapes and sizes make LFW un-paralleled. Such joint configurations are very common in transportation sectors including aerospace and railways. Very little work is reported on the LFW process in comparison to aforementioned popular welding processes. An attempt is made in this article to present the state of the art on LFW of various materials in similar and dissimilar combinations. Materials in promising applications such as space, aircraft, aerospace and railways are the main focusses. This work is expected to act as a single window to showcase all aspects of LFW on ferrous and non-ferrous materials in similar and dissimilar combinations. The manuscript begins with an overview on the principle of operation and classification, and subsequently extends the topic to detailed discussion on the joint characteristics, microstructure, material combination and application domain. The literature on LFW was studied and classified based on similar and dissimilar materials, effects of parameters on properties and microstructure responses, evolution of heat and stress conditions, and applications. The article presents, at the end, a meticulously carved out concluding summary which is expected to provide future directions and also an easy to figure out coverage on the discussion.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 1","pages":"1 - 21"},"PeriodicalIF":3.3,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bo Ren, Xiao-Fan Zhang, Rui-Feng Zhao, Hong-Song Zhang
{"title":"Microstructure and Friction Properties of TiB2@Ti/CoCrFeNi High Entropy Alloy Matrix Composite","authors":"Bo Ren, Xiao-Fan Zhang, Rui-Feng Zhao, Hong-Song Zhang","doi":"10.1007/s12540-024-01742-5","DOIUrl":"10.1007/s12540-024-01742-5","url":null,"abstract":"<div><p>TiB<sub>2</sub>@Ti/CoCrFeNi high-entropy alloy matrix composite (HEAMC) powders and bulk materials were prepared by mechanical alloying and spark plasma sintering. The microstructure of the powders was characterized, and the microstructure, hardness, and friction properties of the bulk materials were investigated. Results showed that after low-energy ball milling for 8 h, the composite powder presented an ellipsoidal or granular shape with an average particle size of approximately 80 µm. The phase structure was mainly composed of FCC, Ti, and TiB<sub>2</sub> phases. The phase structure of the sintered composite was mainly composed of FCC and a small amount of TiB<sub>2</sub> phases. The microhardness of the composite was 362 HV, which was approximately 188 HV higher than that of the matrix alloy. The average friction coefficient was approximately 0.6664, which was 0.087 lower than that of the matrix alloy. The improvement in the hardness and friction performance of the composite was mainly attributed to the strengthening of grain boundary caused by the enrichment of TiB<sub>2</sub> particles and Cr<sub>2</sub>O<sub>3</sub> along the grain boundary and the solid solution strengthening of Ti. The wear types were mainly abrasive and oxidative wear for the composite and CoCrFeNi matrix alloy.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 1","pages":"260 - 271"},"PeriodicalIF":3.3,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vanessa Quaranta, Lucas Traina, Mikhail Ryazanov, Denis Saraev
{"title":"Computational Model for Predicting Precipitation Evolution in Two-Phase Steel: First Application to Grain-Oriented Electrical Steel","authors":"Vanessa Quaranta, Lucas Traina, Mikhail Ryazanov, Denis Saraev","doi":"10.1007/s12540-024-01751-4","DOIUrl":"https://doi.org/10.1007/s12540-024-01751-4","url":null,"abstract":"<p>Production of grain-oriented (GO) electrical steel represents a very complex technological process route with the fine dispersion of precipitates representing a key requirement to maximize final magnetic properties. This paper describes a novel computational model able to predict the kinetics of second-phase particles in dual phase steels by considering <i>co</i>precipitation in ferrite and austenite. The model is applied to a typical industrial GO electrical steel subjected to production steps ranging from continuous casting to coiling after hot rolling. To facilitate interpretation of final results, these production steps are represented by a simplified thermo-mechanical profile although the model can process arbitrary profiles with different complexities. It is demonstrated that the methodology proposed in this work provides a comprehensive thermo-kinetics description of secondary phases with aluminium nitride (AlN) being the main precipitate. A bimodal distribution of AlN is predicted at the end of the cycle with two populations, one at nano-meter scale (< 200 nm) and one at micro-meter (> 200 nm) scale. Final distribution of AlN is also compared with experimental observations. For both populations, the main characteristic quantity (i.e. mean diameter) computed by the model is in agreement with measurements. This makes the developed technique a powerful tool for both qualitative and quantitative assessment of second-phase particles evolution in dual phase steels.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"3 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141880706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}